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First of all, you need to have the tools and save.
360Revolution
Any hex editor you want
Savegame.dat decompressor and compressor
Command Prompt
The world you want to mod
Device configured to the 360
Here are the files that are needed

How To decompress the Savegame.dat
Move your world to a device that you can transfer the world
Connect the device to the computer
Now create a folder on your desktop named World Backup, and put your world in it
Now create another folder called, well call it whatever you want, then put another copy of your world in it
Now open up Command Prompt
Download the Minecraft Decompressor, I included a hex editor with it
Put your extracted non backup world in 360Revolution and go to contents
Extract the Savegame.dat to the non backup folder
Open Command Prompt
Then drag the minecraft.exe into the Command Prompt. Add a space, then type -d. Then add a space after that Then drag your Savegame.dat into the Command Prompt. Add another space after that. Then drag your Savegame.dat into it again, but this time rename it to decompressed.dat.
It should look like this, but the folder names might be different

Close Close the Command Prompt
Open the decompressed.dat in any hex editor
​
Now onto modding the enchantments

When you load the decompressed.dat file in your editor use Ctrl + F to find ench
It should look like this

Now scroll or move to the id section and once there, go to this. It is the type of enchantment that you have, like Efficency or Respiration. It will always be four spaces before the lvl. It should look like this, it will always be before the 02

Use this site to find the enchantments that you'll want, the thorns enchantment isn't available right now, so be careful what you do.

Here is a Hex Calculator, made by [member=begallegal1]. You can use this to find out the proper hex for an enchantment. Like say you want to find out the hex for the Unbreaking. You will open up the Hexulator, and then type the number 34 in the decimal section. Then at the bottom it will show you 22 as hexadecimal which is what you would use to replace the old enchantment.

Open your world in 360Revolution and go to contents
Replace the original "savegame.dat" with the modded one
Rehash and Resign your world
Open USB Explorer and replace your original world with the modded one

155/188

First of all, you need to have the tools and save.
360Revolution
Any hex editor you want
Savegame.dat decompressor and compressor
Command Prompt
The world you want to mod
Device configured to the 360
Here are the files that are needed

How To decompress the Savegame.dat
Move your world to a device that you can transfer the world
Connect the device to the computer
Now create a folder on your desktop named World Backup, and put your world in it
Now create another folder called, well call it whatever you want, then put another copy of your world in it
Now open up Command Prompt
Download the Minecraft Decompressor, I included a hex editor with it
Put your extracted non backup world in 360Revolution and go to contents
Extract the Savegame.dat to the non backup folder
Open Command Prompt
Then drag the minecraft.exe into the Command Prompt. Add a space, then type -d. Then drag your Savegame.dat into the Command Prompt. Add another space after that. Then drag your Savegame.dat into it again, but this time rename it to decompressed.dat.
It should look like this, but the folder names might be different

Close Close the Command Prompt
Open the decompressed.dat in any hex editor
​
Now onto modding the enchantments

When you load the decompressed.dat file in your editor use Ctrl + F to find ench
It should look like this

Now scroll or move to the id section and once there, go to this. It is the type of enchantment that you have, like Efficency or Respiration. It will always be four spaces before the lvl. It should look like this, it will always be before the 02
You can change the two highlighted digits to any of the numbers below and give them the enchantment

Open your world in 360Revolution and go to contents
Replace the original "savegame.dat" with the modded one
Rehash and Resign your world
Open USB Explorer and replace your original world with the modded one